Question

The electric potential at points in an xy plane is given by V = (2.3 V/m2)x2 -(3.9 V/m2)y2. What are (a) the magnitude of the electric field at the point (2.4 m, 2.2 m) and (b) the angle that the field there makes with the positive x direction.

Answer 1

Electric field is just the negative gradient of potential at a certain point